Abd al-Rahman ibn Nasr al-Shirazi's 'Nihayat al-Rutbah fi Talab al-Hisbah' is a foundational work exploring the profound institution of Al-Hisbah in Islamic governance. This seminal treatise delves into the historical, legal, and practical dimensions of enjoining good and forbidding evil, emphasizing its critical role in maintaining social order, ensuring justice in markets, and upholding public morality. Al-Shirazi meticulously outlines the qualifications of a 'Muhtasib' (Hisbah official), the scope of their authority, and the diverse responsibilities ranging from preventing fraud and usury to regulating public spaces. The book serves as an invaluable guide for understanding the principles and application of this vital Islamic mechanism for societal well-being and ethical conduct. It offers timeless insights into the challenges and complexities of administering justice and promoting virtue within a community, making it essential reading for scholars and practitioners alike.